P1473 Code BMW: Meaning, Causes, Symptoms and Fixes

BMW P1473 Code:Diagnostic Module Tank Leakage Pump Current Plausibility

As a car owner, it can be frustrating to see the check engine light come on, especially when you’re not sure what the problem is. One common issue that BMW drivers may encounter is the P1473 diagnostic trouble code. This code can indicate a problem with the Diagnostic Module Tank Leakage Pump Current Plausibility in your BMW vehicle. In this article, we’ll explore the meaning, causes, symptoms, and fixes for the P1473 code, so you can troubleshoot and resolve any issues with your BMW today.

Understanding BMW P1473 Code

BMW P1473 code is a diagnostic trouble code that indicates an issue with the tank leakage pump current plausibility in BMW vehicles. This code is usually triggered when the engine control module (ECM) detects a discrepancy between the expected current flow and the actual current flow in the tank leakage pump circuit. The tank leakage pump is responsible for maintaining the pressure in the fuel tank and preventing fuel vapors from escaping into the atmosphere. When the pump fails or malfunctions, it can cause a variety of symptoms, including rough idling, decreased fuel efficiency, and even stalling. If you encounter the P1473 code in your BMW, it is important to have it diagnosed and repaired by a qualified mechanic to prevent further damage to your vehicle.

Signs and Symptoms of BMW P1473 Code

When the BMW P1473 code appears, it indicates a problem with the Diagnostic Module Tank Leakage Pump Current Plausibility. This code is usually accompanied by several symptoms that can help you identify the issue. Here are some of the most common signs and symptoms of the BMW P1473 code:

  • Check Engine Light: The most obvious symptom of the P1473 code is the illumination of the check engine light on the dashboard. This light indicates that there is a problem with the vehicle’s emissions system.
  • Reduced Fuel Efficiency: When the P1473 code appears, it can cause a reduction in fuel efficiency. This is because the vehicle’s emissions system is not functioning properly, which can lead to increased fuel consumption.
  • Difficulty Starting the Engine: Another symptom of the P1473 code is difficulty starting the engine. This is because the emissions system is not functioning properly, which can cause problems with the fuel system.
  • Strange Smells: If you notice strange smells coming from your vehicle, it could be a sign of the P1473 code. This is because the emissions system is not functioning properly, which can cause fuel to leak and emit a strong odor.
  • Engine Misfires: When the P1473 code appears, it can cause engine misfires. This is because the emissions system is not functioning properly, which can cause problems with the fuel system and lead to misfires.

If you notice any of these symptoms, it is important to take your BMW to a qualified mechanic as soon as possible. Ignoring the P1473 code can lead to more serious problems with your vehicle’s emissions system, which can be costly to repair. A mechanic will be able to diagnose the issue and recommend the best course of action to resolve the problem.

Possible Causes of BMW P1473 Code

The P1473 code in BMW vehicles is related to the Diagnostic Module Tank Leakage Pump Current Plausibility. This code indicates that there is an issue with the tank leakage pump current, which is responsible for maintaining the pressure in the fuel tank. Here are some of the possible causes of the P1473 code:

  • Faulty Tank Leakage Pump: The most common cause of the P1473 code is a faulty tank leakage pump. If the pump is not working properly, it will not be able to maintain the pressure in the fuel tank, which can trigger the code.
  • Leaking Fuel Tank: Another possible cause of the P1473 code is a leaking fuel tank. If there is a leak in the tank, the pressure will not be maintained, and the code will be triggered.
  • Broken Fuel Cap: A broken or loose fuel cap can also cause the P1473 code. If the cap is not sealing properly, it can cause a leak in the fuel tank, which will trigger the code.
  • Faulty Fuel Tank Pressure Sensor: The fuel tank pressure sensor is responsible for monitoring the pressure in the fuel tank. If the sensor is faulty, it can cause the P1473 code to be triggered.
  • Wiring Issues: Wiring issues can also cause the P1473 code. If there is a problem with the wiring that connects the tank leakage pump or fuel tank pressure sensor to the engine control module, it can trigger the code.

If you are experiencing the P1473 code in your BMW, it is important to have it diagnosed and repaired as soon as possible. Ignoring the code can lead to further damage to your vehicle and potentially dangerous situations. Contact a certified mechanic or BMW dealership to properly diagnose and fix the issue.

Fixes for BMW P1473 Code

The P1473 code in BMW vehicles is related to the Diagnostic Module Tank Leakage Pump Current Plausibility. This code indicates that there is an issue with the tank leakage pump current, which can cause problems with the fuel system and emissions. Here are some of the fixes for the P1473 code:

  • Replace the tank leakage pump: The most common fix for the P1473 code is to replace the tank leakage pump. This pump is responsible for maintaining the pressure in the fuel tank and preventing leaks. If the pump is faulty, it can cause the current to be out of range, triggering the code.
  • Check the wiring and connections: Sometimes, the issue with the tank leakage pump current can be caused by faulty wiring or connections. Check the wiring and connections to ensure that they are in good condition and properly connected.
  • Replace the fuel tank pressure sensor: In some cases, the fuel tank pressure sensor can be the culprit behind the P1473 code. If the sensor is faulty, it can cause the pump current to be out of range. Replace the sensor to fix the issue.
  • Check the fuel cap: A loose or faulty fuel cap can also trigger the P1473 code. Make sure that the fuel cap is properly tightened and in good condition.
  • Reset the check engine light: Once you have fixed the issue causing the P1473 code, you will need to reset the check engine light. This can be done using an OBD-II scanner or by disconnecting the battery for a few minutes.

If you are experiencing the symptoms associated with the P1473 code, such as decreased fuel efficiency or rough idling, it is important to address the issue as soon as possible. By following these fixes, you can troubleshoot and resolve the issue with your BMW and get back on the road with confidence.

How Much Will It Take to Fix the BMW P1473 Code?

The cost of fixing the BMW P1473 code can vary depending on the root cause of the issue. The P1473 code indicates a problem with the Diagnostic Module Tank Leakage Pump Current Plausibility, which means that the fuel tank pressure sensor is not working correctly. This can lead to a variety of symptoms, including poor fuel economy, rough idling, and difficulty starting the engine.

The first step in fixing the P1473 code is to diagnose the underlying problem. This may involve checking the fuel tank pressure sensor, the fuel pump, or the fuel lines. Once the issue has been identified, the cost of repairs will depend on the severity of the problem and the parts and labor required to fix it.

In general, the cost of fixing the P1473 code can range from a few hundred dollars to over a thousand dollars. However, it is important to note that the cost of repairs can vary depending on the make and model of your BMW, as well as the location of the repair shop.

If you are experiencing symptoms associated with the P1473 code, it is important to have your BMW inspected by a qualified mechanic as soon as possible. Delaying repairs can lead to more serious problems down the road and may end up costing you more in the long run.

Possible Causes and Fixes of Code

Possible Cause Fix Cost to Fix
Leaking fuel tank Replace fuel tank $500-$1000
Faulty fuel tank pressure sensor Replace fuel tank pressure sensor $200-$400
Malfunctioning diagnostic module tank leakage pump Replace diagnostic module tank leakage pump $300-$600
Loose or damaged fuel cap Replace fuel cap $20-$50
Wiring or electrical issues Repair or replace wiring or electrical components Varies depending on extent of damage

Preventing BMW P1473 Code

If you own a BMW, you may have encountered the P1473 code, which indicates a problem with the Diagnostic Module Tank Leakage Pump Current Plausibility. To prevent this code from appearing, there are several preventive measures you can take.

1. Regular Maintenance: One of the main preventive measures is to ensure that your BMW undergoes regular maintenance. This includes checking the fuel system, fuel tank, and fuel lines for any leaks or damages. Regular maintenance can help detect any potential issues before they become major problems.

2. Use High-Quality Fuel: Another preventive measure is to use high-quality fuel. Low-quality fuel can contain impurities that can damage the fuel system and cause the P1473 code to appear. Using high-quality fuel can help prevent this issue.

3. Check the Gas Cap: The gas cap is an essential component of the fuel system. A loose or damaged gas cap can cause the P1473 code to appear. Therefore, it is important to check the gas cap regularly and ensure that it is tightly secured.

4. Avoid Overfilling: Overfilling the fuel tank can cause the fuel to overflow and damage the fuel system. This can lead to the P1473 code appearing. Therefore, it is important to avoid overfilling the fuel tank and only fill it to the recommended level.

5. Address Any Warning Signs: If you notice any warning signs such as a check engine light or unusual noises, it is important to address them immediately. Ignoring warning signs can lead to major problems and the P1473 code appearing.

  • Regular maintenance
  • Use high-quality fuel
  • Check the gas cap
  • Avoid overfilling
  • Address any warning signs

In conclusion, preventing the P1473 code from appearing in your BMW requires regular maintenance, using high-quality fuel, checking the gas cap, avoiding overfilling, and addressing any warning signs. By following these preventive measures, you can ensure that your BMW runs smoothly and avoid any potential issues.

How Serious is the BMW P1473 Code?

The BMW P1473 code is a diagnostic trouble code that indicates an issue with the tank leakage pump current plausibility. This code is not a critical issue, but it should not be ignored as it can lead to other problems if left unaddressed. The code is usually triggered when the engine control module (ECM) detects a discrepancy between the expected and actual current flow in the tank leakage pump circuit.

Some of the symptoms associated with the P1473 code include a check engine light, reduced engine performance, and decreased fuel efficiency. If left unresolved, the code can lead to other issues such as increased emissions, engine misfires, and even engine damage.

The causes of the P1473 code can vary, but some of the common culprits include a faulty tank leakage pump, damaged wiring or connectors, or a malfunctioning ECM. To fix the issue, a thorough diagnosis is required to identify the root cause of the problem. This may involve inspecting the tank leakage pump, checking the wiring and connectors, or replacing the ECM.

In conclusion, while the BMW P1473 code is not a critical issue, it should not be ignored. It is important to address the issue promptly to prevent further damage to the engine and ensure optimal performance of the vehicle.

Can You Still Drive with the BMW P1473 Code?

If your BMW has triggered the P1473 code, it is an indication that there is an issue with the Diagnostic Module Tank Leakage Pump Current Plausibility. While this code may not necessarily cause your car to break down immediately, it is not recommended to continue driving with this code present.

The P1473 code can cause a variety of symptoms, including poor fuel economy, rough idling, and difficulty starting the engine. Additionally, if left unresolved, this code can lead to more severe issues with your vehicle’s emissions system, which can result in costly repairs down the line.

It is always best to address any diagnostic trouble codes as soon as possible to prevent further damage to your vehicle. If you are unsure of how to fix the issue yourself, it is recommended to take your BMW to a certified mechanic or dealership for proper diagnosis and repair.

Driving with the P1473 code present can also result in your car failing an emissions test, which can lead to fines or penalties. Therefore, it is best to address the issue promptly to ensure your vehicle is running smoothly and efficiently.

Conclusion

Dealing with the BMW P1473 code can be frustrating, but understanding its meaning, causes, symptoms, and fixes can help you troubleshoot and resolve the issue. Whether you need to replace a faulty tank leakage pump or repair a damaged wiring harness, it’s important to address the problem promptly to avoid further damage to your vehicle. If you’re unsure how to fix the issue, it’s always best to consult with a qualified mechanic or BMW specialist who can provide expert advice and assistance. With the right approach, you can get your BMW back on the road and running smoothly once again.

 

FAQ

What does the BMW P1473 code mean?

The BMW P1473 code refers to a Diagnostic Module Tank Leakage Pump Current Plausibility issue. This means that there is a problem with the tank leakage pump current, which is causing the system to detect a fault.

What are the symptoms of the BMW P1473 code?

The symptoms of the BMW P1473 code may include a check engine light, reduced engine performance, and decreased fuel efficiency. In some cases, the vehicle may also experience rough idling or stalling.

What are the common causes of the BMW P1473 code?

The common causes of the BMW P1473 code include a faulty tank leakage pump, damaged wiring or connectors, or a malfunctioning diagnostic module. Other potential causes may include a clogged fuel filter or a leak in the fuel system.

How can I diagnose the BMW P1473 code?

To diagnose the BMW P1473 code, you will need a diagnostic scanner or code reader. This tool will allow you to read the code and access the vehicle’s onboard computer system. From there, you can perform a visual inspection of the tank leakage pump and associated wiring to check for any obvious signs of damage or wear.

Can I still drive my BMW with the P1473 code?

It is not recommended to drive your BMW with the P1473 code. This code indicates a problem with the fuel system, which can lead to decreased performance and potential safety hazards. It is best to have the issue diagnosed and repaired as soon as possible.

How can I fix the BMW P1473 code?

The fix for the BMW P1473 code will depend on the underlying cause of the issue. In some cases, simply replacing the tank leakage pump or repairing damaged wiring may be enough to resolve the problem. However, more complex issues may require the replacement of the diagnostic module or other components of the fuel system.

How do I clear the BMW P1473 code?

To clear the BMW P1473 code, you will need a diagnostic scanner or code reader. Once you have identified and repaired the underlying issue, you can use the scanner to clear the code.
Learn about other similar BMW Fault Codes from our BMW OBD 2 Fault Code List.

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